Weather Records on 20 April 1974

673 weather records were set or tied worldwide on 20 April 1974. Highest significance: Ft Yates 4 SW, US.

Key Facts for 20 April 1974

On 20 April 1974, 673 weather records were set or tied at long-record stations worldwide.
137 were record highs and 114 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 18 monthly and 654 daily.
Ft Yates 4 SW set a monthly record daily precipitation of 101.6 mm (4.0 in) on 20 April 1974.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 461 records.

Record Map

673 stations

673 station records on 20 April 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ft Yates 4 SW	United States	Record daily precipitation	101.6 mm (4.0 in)	81 of 100 (Exceptional)
Pratt 3NW	United States	Record daily precipitation	162.6 mm (6.4 in)	72 of 100 (Major)
Bodalla Post Office	Australia	Record daily precipitation	153.6 mm (6.0 in)	71 of 100 (Major)
Moruya Heads Pilot Station	Australia	Record daily precipitation	115.4 mm (4.5 in)	68 of 100 (Major)
Mtn View 91	United States	Record daily precipitation	199.9 mm (7.9 in)	63 of 100 (Major)
Aunet	Norway	Record daily precipitation	27.8 mm (1.1 in)	62 of 100 (Major)
Copley (Myrtle Springs)	Australia	Record daily precipitation	27.4 mm (1.1 in)	60 of 100 (Major)
Sprague	Canada	Record daily precipitation	60.5 mm (2.4 in)	60 of 100 (Major)
Pahoa 65	United States	Record daily precipitation	157.7 mm (6.2 in)	60 of 100 (Major)
Ewa Plantation 741	United States	Record daily precipitation	64.8 mm (2.6 in)	58 of 100 (Notable)
Inman 5SW	United States	Record daily precipitation	101.6 mm (4.0 in)	57 of 100 (Notable)
Waialua 847	United States	Record daily precipitation	160.0 mm (6.3 in)	57 of 100 (Notable)
Angledool (Angledool Station)	Australia	Record daily precipitation	56.0 mm (2.2 in)	56 of 100 (Notable)
Coldwater	United States	Record daily precipitation	52.3 mm (2.1 in)	56 of 100 (Notable)
Ulladulla	Australia	Record daily precipitation	132.0 mm (5.2 in)	53 of 100 (Notable)
Belem de Sao Francisco	Brazil	Record daily precipitation	93.2 mm (3.7 in)	53 of 100 (Notable)
Selfridge 2 NE	United States	Record daily precipitation	124.0 mm (4.9 in)	53 of 100 (Notable)
Swaziland Ranch-Homest	Swaziland	Record daily precipitation	47.0 mm (1.9 in)	52 of 100 (Notable)
Cartwright	Canada	Record daily precipitation	34.3 mm (1.4 in)	50 of 100 (Notable)
Mount Fairy (Merigan)	Australia	Record daily precipitation	57.3 mm (2.3 in)	49 of 100 (Notable)
Camargo	United States	Record daily precipitation	108.0 mm (4.3 in)	49 of 100 (Notable)
Narooma Rvcp	Australia	Record daily precipitation	95.8 mm (3.8 in)	48 of 100 (Notable)
Indian Bay	Canada	Record daily precipitation	34.3 mm (1.4 in)	48 of 100 (Notable)
Mc Clusky	United States	Record daily precipitation	55.6 mm (2.2 in)	48 of 100 (Notable)
Wishek	United States	Record daily precipitation	71.1 mm (2.8 in)	48 of 100 (Notable)
Lower Boro (Calderwood)	Australia	Record daily precipitation	76.0 mm (3.0 in)	47 of 100 (Notable)
Steele 4N	United States	Record daily precipitation	44.5 mm (1.8 in)	47 of 100 (Notable)
Camoola Park	Australia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Caraubas (Caraibeiras)	Brazil	Record daily precipitation	100.2 mm (3.9 in)	46 of 100 (Notable)
Linton	United States	Record daily precipitation	61.7 mm (2.4 in)	46 of 100 (Notable)
Guacui	Brazil	Record daily precipitation	72.0 mm (2.8 in)	45 of 100 (Notable)
McPherson	United States	Record daily precipitation	56.6 mm (2.2 in)	45 of 100 (Notable)
Mutual	United States	Record daily precipitation	83.8 mm (3.3 in)	45 of 100 (Notable)
Tinnenburra	Australia	Record daily precipitation	36.8 mm (1.4 in)	44 of 100 (Notable)
Cicero Dantas	Brazil	Record daily precipitation	52.4 mm (2.1 in)	44 of 100 (Notable)
Nowra Treatment Works	Australia	Record daily precipitation	74.0 mm (2.9 in)	42 of 100 (Notable)
New Angledool Telephone Office	Australia	Record daily precipitation	58.0 mm (2.3 in)	41 of 100 (Notable)
Bakhmaro	Georgia	Record daily precipitation	40.3 mm (1.6 in)	41 of 100 (Notable)
Newton	United States	Record daily precipitation	54.4 mm (2.1 in)	41 of 100 (Notable)
Butte 5SE	United States	Record daily precipitation	26.2 mm (1.0 in)	40 of 100 (Notable)
Buffalo 2 SSW	United States	Record daily precipitation	68.6 mm (2.7 in)	40 of 100 (Notable)
Kennebec	United States	Record daily precipitation	42.9 mm (1.7 in)	40 of 100 (Notable)
Barcaldine Post Office	Australia	Record daily precipitation	37.4 mm (1.5 in)	39 of 100 (Notable)
Hebel Store	Australia	Record daily precipitation	51.0 mm (2.0 in)	39 of 100 (Notable)
Velikie Luki	Russia	Record low minimum temperature	-8.1 C (17.4 F)	39 of 100 (Notable)
Bollon Mary St	Australia	Record daily precipitation	57.4 mm (2.3 in)	38 of 100 (Notable)
Ninette	Canada	Record daily precipitation	39.9 mm (1.6 in)	38 of 100 (Notable)
Abilene	United States	Record daily precipitation	29.5 mm (1.2 in)	38 of 100 (Notable)
Boatman Station	Australia	Record daily precipitation	50.0 mm (2.0 in)	37 of 100 (Notable)
Lightning Ridge Post Office	Australia	Record daily precipitation	60.0 mm (2.4 in)	37 of 100 (Notable)
Senhor Do Bonfim	Brazil	Record daily precipitation	80.0 mm (3.1 in)	37 of 100 (Notable)
Boissevain	Canada	Record daily precipitation	40.4 mm (1.6 in)	37 of 100 (Notable)
Graysville	Canada	Record daily precipitation	46.7 mm (1.8 in)	37 of 100 (Notable)
Soldier Summit	United States	Record daily snowfall	25.4 cm (10.0 in)	37 of 100 (Notable)
Waianae 798	United States	Record daily precipitation	53.3 mm (2.1 in)	37 of 100 (Notable)
Saude	Brazil	Record daily precipitation	84.6 mm (3.3 in)	36 of 100 (Notable)
Falls City Brenner Fld	United States	Record daily precipitation	73.2 mm (2.9 in)	36 of 100 (Notable)
White Cliffs (Tongo)	Australia	Record daily precipitation	34.3 mm (1.4 in)	35 of 100 (Notable)
Hudson	United States	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Kingman	United States	Record daily precipitation	52.1 mm (2.1 in)	34 of 100 (Routine)

Counts by Type and Timescale

673 records

Records set or tied on 20 April 1974 by type: Highest daily maximum 33, Lowest daily maximum 29, Highest daily minimum 104, Lowest daily minimum 85, Heaviest daily rainfall 414, Heaviest daily snowfall 6, Deepest snow cover 2.

Records on 20 April 1974 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	29
Highest daily minimum	104
Lowest daily minimum	85
Heaviest daily rainfall	414
Heaviest daily snowfall	6
Deepest snow cover	2

Records on 20 April 1974 by timescale: all-time 1, monthly 18, daily 654.

How Much Records Were Beaten By

590 broken records

Margins by which the 590 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

20 April 1974

Top 20 records on 20 April 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1974	Ft Yates 4 SW, US	monthly rain	101.6 mm (4.0 in)	40.4 mm (1.6 in)	77 years	81 of 100 (Exceptional)
20 April 1974	Pratt 3NW, US	monthly rain	162.6 mm (6.4 in)	76.2 mm (3.0 in)	49 years	72 of 100 (Major)
20 April 1974	Bodalla Post Office, AU	daily rain	153.6 mm (6.0 in)	89.6 mm (3.5 in)	79 years	71 of 100 (Major)
20 April 1974	Moruya Heads Pilot Station, AU	daily rain	115.4 mm (4.5 in)	65.4 mm (2.6 in)	79 years	68 of 100 (Major)
20 April 1974	Mtn View 91, US	daily rain	199.9 mm (7.9 in)	109.5 mm (4.3 in)	57 years	63 of 100 (Major)
20 April 1974	Aunet, NO	daily rain	27.8 mm (1.1 in)	15.0 mm (0.6 in)	64 years	62 of 100 (Major)
20 April 1974	Copley (Myrtle Springs), AU	daily rain	27.4 mm (1.1 in)	27.4 mm (1.1 in)	76 years	60 of 100 (Major)
20 April 1974	Sprague, CA	monthly rain	60.5 mm (2.4 in)	20.9 mm (0.8 in)	47 years	60 of 100 (Major)
20 April 1974	Pahoa 65, US	daily rain	157.7 mm (6.2 in)	110.5 mm (4.4 in)	44 years	60 of 100 (Major)
20 April 1974	Ewa Plantation 741, US	daily rain	64.8 mm (2.6 in)	57.2 mm (2.3 in)	36 years	58 of 100 (Notable)
20 April 1974	Inman 5SW, US	monthly rain	101.6 mm (4.0 in)	38.9 mm (1.5 in)	27 years	57 of 100 (Notable)
20 April 1974	Waialua 847, US	monthly rain	160.0 mm (6.3 in)	35.5 mm (1.4 in)	51 years	57 of 100 (Notable)
20 April 1974	Angledool (Angledool Station), AU	daily rain	56.0 mm (2.2 in)	38.2 mm (1.5 in)	87 years	56 of 100 (Notable)
20 April 1974	Coldwater, US	daily rain	52.3 mm (2.1 in)	38.3 mm (1.5 in)	40 years	56 of 100 (Notable)
20 April 1974	Ulladulla, AU	daily rain	132.0 mm (5.2 in)	113.5 mm (4.5 in)	35 years	53 of 100 (Notable)
20 April 1974	Belem de Sao Francisco, BR	daily rain	93.2 mm (3.7 in)	78.2 mm (3.1 in)	39 years	53 of 100 (Notable)
20 April 1974	Selfridge 2 NE, US	all-time rain	124.0 mm (4.9 in)	26.2 mm (1.0 in)	6 years	53 of 100 (Notable)
20 April 1974	Swaziland Ranch-Homest, SZ	daily rain	47.0 mm (1.9 in)	41.9 mm (1.6 in)	45 years	52 of 100 (Notable)
20 April 1974	Cartwright, CA	daily rain	34.3 mm (1.4 in)	16.3 mm (0.6 in)	74 years	50 of 100 (Notable)
20 April 1974	Mount Fairy (Merigan), AU	daily rain	57.3 mm (2.3 in)	41.8 mm (1.6 in)	9 years	49 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1807 to 1974

Records set or tied on this calendar date in each year from 1807 to 1974. 1974 had 673 records.

Counts for years before the ledger starts come from the same station rules.

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 1974-04-20: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	570
50 to 100	13
100 to 150	5
150 to 200	1
200 to 250	0
250 to 300	1